EP 0389643 A4 19911113 - DIRECT-ACTING IMPACT RIPPER
Title (en)
DIRECT-ACTING IMPACT RIPPER
Publication
Application
Priority
JP 12869888 U 19880930
Abstract (en)
[origin: EP0389643A1] The impact ripper has a bracket (2) fixed to the rear portion of a chassis of a construction machine. At the rear side of the bracket various parts are provided, which include a beam (4) to which a breaker mounting bracket (9) having a shank (8) and a hydraulic breaker (10) is fixed. An arm (6) connects the lower portions of the bracket and beam together, and a tilting cylinder (5) connects the upper portions of the bracket and beam (4) together. A lift cylinder (16) connects the upper portion of the bracket and the lower portion of the beam (4) together. The beam and shank are provided with a pair of link members (7), which support the beam and shank pivotably so that these parts form a quadric link. Since the shank is moved linearly owing to the quadric link, a ripping limit w.r.t. a hard rock is heightened.
IPC 1-7
IPC 8 full level
E02F 5/32 (2006.01)
CPC (source: EP US)
E02F 5/323 (2013.01 - EP US)
Citation (search report)
- [X] US 3897975 A 19750805 - COBB DELWIN E [US], et al
- [X] FR 1546107 A 19681115
- [A] DE 2041218 A1 19710225 - GUIBBERT JEAN RENE
- See references of WO 9003473A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0389643 A1 19901003; EP 0389643 A4 19911113; JP H0278647 U 19900618; JP H072736 Y2 19950125; US 5094017 A 19920310; WO 9003473 A1 19900405
DOCDB simple family (application)
EP 89910932 A 19890928; JP 12869888 U 19880930; JP 8900987 W 19890928; US 47650690 A 19900725